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Security report for jsa.de

LinkedIn · Technology · Germany

Low risk. 1 critical or high finding in GDPR outside view.

Security score

88/100

Risk levelLow

0–100, higher is better. How it is calculated

This LinkedIn profile page represents Dr. Jan Stefan Addicks, a professional based in Oldenburg, Germany, hosted on the LinkedIn platform, a leading global professional networking service owned by Microsoft. The page is designed to showcase professional credentials and networking connections but restricts full profile visibility to signed-in users. The technical infrastructure leverages modern web technologies including React and Google OAuth for authentication, ensuring a secure and user-friendly experience. Security posture is strong with HTTPS enforcement, security headers, and privacy compliance evidenced by comprehensive policies and cookie consent mechanisms. Overall, the site demonstrates high professionalism and trustworthiness, though direct contact information is not publicly disclosed on this profile page. The WHOIS data is unavailable due to privacy or registry restrictions, but the domain is globally recognized and legitimate.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

1 finding rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

Need hands-on remediation? Email guard@offseq.com

Keep watching jsa.de

This scan found 9 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
100
Security headers
75
Email security
90
DNS health
90
Network security
100
GDPR outside view
73
Average
88

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention jsa.de, from OffSeq Breach.

No leaked records found

Breach holds no records for jsa.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

LinkedIn operates as a dominant player in the professional networking industry, targeting professionals, recruiters, and businesses worldwide. Its business model revolves around providing networking, job search, learning, and advertising services. The platform's market position is strong, supported by its parent company Microsoft. This profile page reflects LinkedIn's consistent branding and professional content quality. The absence of direct contact details on the profile is typical for user privacy. The platform integrates Google authentication and maintains compliance with GDPR and other privacy regulations, indicating mature data governance and user trust management.

Security posture

The website employs robust security measures including HTTPS, modern security headers, and secure login forms with Google OAuth integration. Cookie consent and privacy policies are prominently presented, supporting GDPR compliance. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The security score is high, reflecting LinkedIn's commitment to protecting user data and platform integrity. However, continuous monitoring and auditing of third-party scripts and login endpoints are recommended to maintain this posture.

Recommendations

  1. Maintain and regularly update security headers and SSL/TLS configurations.
  2. Conduct periodic security audits of third-party integrations and scripts.
  3. Enhance transparency by providing clear incident response and security contact information.
  4. Continue to improve accessibility and mobile optimization for broader user reach.
  5. Monitor privacy policy updates to ensure ongoing compliance with evolving regulations.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
LinkedIn
Description
LinkedIn profile page for Dr. Jan Stefan Addicks located in Oldenburg, Germany, part of LinkedIn professional network.
Key services
Professional profiles, Networking, Job search, Learning
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, React, JSON-LD, Google Identity Services
Frameworks
LinkedIn proprietary frontend framework
Platforms
Web, Android, iOS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Secure login forms
  • Google OAuth integration
  • Cookie consent banner

Analytics and tracking

Services
LinkedIn Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
LinkedIn Insight Tag
Marketing tools
LinkedIn Ads, Google OAuth
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. LinkedIn profile page with restricted full content viewing requiring sign-in
  2. Strong branding and professional presentation
  3. Multiple sign-in modals and Google OAuth integration
  4. No direct contact information or company emails visible
  5. Comprehensive privacy, cookie, and terms policies linked
  6. No WHOIS data available from raw output, likely due to privacy or registry restrictions
Technical notes

Notes

The website uses a modern tech stack including React and JSON-LD structured data for SEO and rich snippets. Google Identity Services are integrated for authentication. The site is mobile optimized with good accessibility features and SEO practices. Performance is moderate, likely due to rich media and dynamic content. No CMS or hosting provider details were explicitly detected. The technical implementation supports a professional and secure user experience, though opportunities exist for performance optimization and enhanced technical transparency.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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